Hyperbolic Plane
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Superfícies mínimas com curvatura constante nas formas espaciais 4-dimensionais / Minimal surfaces with constant curvature in 4-dimensional space forms
Este trabalho foi baseado nos artigos On CompactMinimal Surfaces with non-negative Gaussian Curvature in a Space of Constant Curvature: I e Minimal Surfaces with Constant Curvature in 4-dimensional Space Forms de Katsuei Kenmotsu que consistem em classificar superfícies mínimas com curvatura Gaussiana constante K nas formas espaciais 4-dimensionais, sem al
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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2. Superfícies mínimas com curvatura constante nas formas espaciais 4-dimensionais / Minimal surfaces with constant curvature in 4-dimensional space forms
Este trabalho foi baseado nos artigos On CompactMinimal Surfaces with non-negative Gaussian Curvature in a Space of Constant Curvature: I e Minimal Surfaces with Constant Curvature in 4-dimensional Space Forms de Katsuei Kenmotsu que consistem em classificar superfícies mínimas com curvatura Gaussiana constante K nas formas espaciais 4-dimensionais, sem al
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011
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3. Geometria hiperbólica : uma proposta para o desenvolvimento de atividades utilizando o software livre NonEuclid / Hyperbolic geometry : a proposal for the development of activities using the software NonEuclid
This work deals with the teaching of Euclidian and Hyperbolic Geometry using software in the Dynamic Geometry area, especially the software by the name of NonEuclid". The objective of this work is to be a proposal for activities in Hyperbolic Geometry using this software. The computer introduces a dynamic diversity to the study, allowing students to examine,
Publicado em: 2010
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4. Isometric embeddings of the hyperbolic plane in Euclidean spaces / Mergulhos isométricos do plano hiperbólico em espaços Euclidianos
In this dissertation we present analytic expressions for isometric embeddings of hyperbolic plane (H2; ds) with Riemannian metric ds2 = dx2 + cosh2 (x) dy2 in Euclidean spaces R6 and S8 R9. Besides isometric embeddings, we present analytic expressions for isometries between the Euclidean models of the Poincaré disk, Upper Half-Plane and the model (H; ds) ci
Publicado em: 2009
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5. Teorema de geometrizaÃÃo para girassÃis de grafos com valÃncia mÃnima trÃs
Dado um grafo G conexo e com valÃncia mÃnima trÃs, apresentamos um algoritmo que obtÃm o mapeamento de G numa superfÃcie fechada S de tal forma que G possui apenas uma face. Ao dual G* assim obtido, chamamos girassol de G. Particionamos entÃo as arestas do girassol em arestas de fronteira e cordas internas. As cordas internas nÃo se cruzam e as aresta
Publicado em: 2008
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6. Dinâmica de aplicações quadráticas conservativas do plano
In this work will be characterized the generic form of plane quadratic applications that preserve area, orientation and that have a fixed point. It will evaluate the linear stability of fixed points, detecting the conditions to hyperbolicity and ellipticity. Also, will be studied the behavior of the first Birkhoff coefficient in the elliptical case not reson
Publicado em: 2006
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7. Realizações de constelações de sinais hiperbolicas densas associadas a sistemas lineares atraves das funções automorfas
In this work we have introduced a transmission line as a hyperbolic modeling; we have constructed a signal constellation in the hyperbolic plane from regular tessellations such as the ones generated by {12g - 6, 3} ; we have established a procedure for couting the number of points of the constellations mentioned above. We have also presented the automorphic
Publicado em: 2005
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8. Coordenadas Fricke e empacotamentos hiperbolicos de discos
This work searches elements to determine the packing density of spheres defined by lattices in the hyperbolic plane. We consider the teichmüller space Tg of all closed compacts oriented surfaces of genus 9 ~ 2, which has the hyperbolic plane as universal covering rienmannian surface. It is known that the system of Fricke coordinates in Tg associates each su
Publicado em: 2005
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9. Constelações de sinais e analise de desempenho no plano hiperbolico
In this work we design signals constellations in the hyperbolic plane. We analyse the performance of P AM, PSK and QAM-circular constellations in the hyperbolic plane in connection with similar constellations in the Euc1idean plane. To set up these constellations, we introduce several concepts of hyperbolic geometry, among then is the concept of tesselations
Publicado em: 2000
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10. Formation of Binaries from Triple Systems
The dynamical behavior of three masses moving under their mutual gravitational attraction in a plane is investigated by a systematic series of numerical experiments. It is shown that in 73% of the cases, a triple system disintegrates in less than 150 time units (corresponding to about 150 crossing times), and a binary is formed with the third star that escap